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DSL/vectoring/G.fast

Huawei Boasts 700-Mbit/s DSL

9:05 AM -- Huawei Technologies Co. Ltd. is claiming its fixed broadband access platform can achieve eyeball-popping downstream speeds of up to 700 Mbit/s utilizing what it calls "SuperMIMO" (multiple-input/multiple-output) technology.

Huawei says that speed, which is getting close to the amazing top-end speeds only just being achieved with fiber-to-the-home (FTTH) connections, has been achieved with prototype equipment.

Of course, we are talking specific conditions to achieve this kind of speed: This is not from a DSLAM in a central office, but a remote box in a fiber-to-the-curb (FTTC) or fiber-to-the-building (FTTB) topology using bonded copper techniques. Huawei explains: "SuperMIMO technology uses four twisted pairs to achieve a downstream rate of 700 Mb/s at a distance of 400 meters. This innovative technology methodically addresses crosstalk among multiple twisted pairs and dramatically increases DSL bandwidth by 75 percent, from an average of 100 Mb/s per twisted pair to approximately 175 Mb/s."

I expect this claim to be a talking point at the upcoming Broadband World Forum 2010 in Paris.

— Ray Le Maistre, International Managing Editor, Light Reading

gfinnie 12/5/2012 | 4:22:57 PM
re: Huawei Boasts 700-Mbit/s DSL

This sounds very like the g.vector stuff (and ALU's so-called Phantom Mode enhancement) that I wrote about a few months back ( http://www.lightreading.com/document.asp?doc_id=192201,) with similar lab speeds claimed (ALU was talking about 400Mbit/s on two pairs over 1km, rather than 700Mbit/s on four over 400m). ECI and Ericsson also have similar products in the works. 

stryderbsd 12/5/2012 | 4:22:52 PM
re: Huawei Boasts 700-Mbit/s DSL

This is using G.Vector. I'm guessing this is a prototype fpga line card, for a proof of concept demo of Huawei's DSM L3 solution. SuperMimo is just marketing fluff added, its DSM L3 like ALU and Ericsson. 

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